Juken is epic, I like it. Change Kaiten though, it's pretty much the exact same thing neji has.
With the ulti, maybe it should be a percentage amount, or 15 + 35% of the attackers damage. idk, something like that. Because otherways you would take 0 damage fromcreep on it's first level and would just be a bit unbalancedl. I guess thats my opinion. Your right though, It would be amazingly useful in team fights.
